APEKS XTX40 Octopus

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The Apeks XTX40 Octo has  cold water capability and the performance Apeks is known for. The Apeks XTX40 Octo has a large easy to use purge button, with the ability to control flow. Press the purge button on the side for slower more controlled flow, or press the middle for high flow. Braided flexi-hoses are standard on all models of Apeks Octos, and Regulators. The XTX40 Octo is nitrox ready, up to 40% O2 out of the box, but can be O2 cleaned for 100%.


  • This octopus is based upon the XTX40 second stage.
  • Left / right reversibility.
  • Coldwater capability and the performance you would expect from an Apeks pneumatically balanced regulator.
  • Diver-adjustable venturi control
  • High visibility yellow front cover, yellow accent pieces and a 36” yellow hose
  • Comes standard with small exhaust tee
  • 40% O2 maximum ready out of the box.